Object/Trait

com.thoughtworks

Extractor

Related Docs: trait Extractor | package thoughtworks

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object Extractor extends LowPriorityExtractor

Utilities to convert between A => Option[B], scala.PartialFunction and Extractor.

Source
Extractor.scala
Example: 

  1. import com.thoughtworks.Extractor._
// Define a PartialFunction
val pf: PartialFunction[Int, String] = {
  case 1 => "matched by PartialFunction"
}
// Define an optional function
val f: Int => Option[String] = { i =>
  if (i == 2) {
    Some("matched by optional function")
  } else {
    None
  }
}
// Convert an optional function to a PartialFunction
val pf2: PartialFunction[Int, String] = Function.unlift(f)
util.Random.nextInt(4) match {
  case pf.extract(m) => // Convert a PartialFunction to a pattern
    println(m)
  case f.extract(m) => // Convert an optional function to a pattern
    println(m)
  case pf2.extract(m) => // Convert a PartialFunction to a pattern
    throw new AssertionError("This case should never occur because it has the same condition as `f.extract`.")
  case _ =>
    println("Not matched")
}
Linear Supertypes
LowPriorityExtractor, LowLowPriorityExtractor, AnyRef, Any
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Inherited
  1. Extractor
  2. LowPriorityExtractor
  3. LowLowPriorityExtractor
  4. AnyRef
  5. Any
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Visibility
  1. Public
  2. All

Type Members

  1. implicit final class FunctionToExtractor[-A, +B] extends AnyRef

    Permalink
    Definition Classes
    LowLowPriorityExtractor

  2. implicit final class OptionFunctionToExtractor[-A, +B] extends AnyRef

    Permalink
    Definition Classes
    LowPriorityExtractor

  3. implicit final class OptionFunctionToSeqExtractor[-A, +B] extends AnyRef

    Permalink
    Definition Classes
    LowPriorityExtractor

  4. implicit final class PartialFunctionToExtractor[-A, +B] extends AnyRef

    Permalink

  5. sealed trait SeqExtractor[-A, +B] extends AnyRef

    Permalink
    Definition Classes
    LowPriorityExtractor

Value Members

  1. final def !=(arg0: Any): Boolean

    Permalink
    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

    Permalink
    Definition Classes
    AnyRef → Any

  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  4. final def asInstanceOf[T0]: T0

    Permalink
    Definition Classes
    Any

  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate() @throws( ... )

  6. final def eq(arg0: AnyRef): Boolean

    Permalink
    Definition Classes
    AnyRef

  7. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  8. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate()

  9. def hashCode(): Int

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    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate()

  10. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  11. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  12. final def notify(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate()

  13. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate()

  14. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef

  15. def toString(): String

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    Definition Classes
    AnyRef → Any

  16. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  17. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  18. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Deprecated Value Members

  1. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @Deprecated @deprecated @throws( classOf[java.lang.Throwable] )
    Deprecated

    (Since version ) see corresponding Javadoc for more information.

Inherited from LowPriorityExtractor

Inherited from LowLowPriorityExtractor

Inherited from AnyRef

Inherited from Any

Ungrouped